SA31 3DN

Carmarthen Town West · Carmarthenshire · Wales

Updated September 2026

Compare this postcode

Location overview

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Post town
Carmarthen
Local authority
Carmarthenshire
Constituency
Caerfyrddin
Postcode district
SA31
Postcode sector
SA31 3

Nearby postcodes

Nearby postcode distances
Postcode Distance
SA31 3DL 70 m
SA31 3DR 81 m
SA31 3EE 92 m
SA31 3DJ 96 m
SA31 3DS 119 m
Complete postcode fields and official codes
Postcode
SA31 3DN
Status
Current
Introduced
1 January 1980
Terminated
Not published
Postcode area
SA
Postcode district
SA31
Postcode sector
SA31 3
Latitude
51.858172
Longitude
-4.317326
British National Grid easting
240,516
British National Grid northing
220,270

Statistical and administrative geographies

Country
Wales · W92000004
Region
W99999999
Local authority district
Carmarthenshire · W06000010
Parish or community
W04000494
Westminster constituency
Caerfyrddin · W07000087
Output area
W00003463
Lower layer super output area
Carmarthenshire 006C · W01000645
Middle layer super output area
Carmarthenshire 006 · W02000147

Postcode source versions

Explore SA31

31 recorded sales at this postcode
Address Date Price
Llanwern, St Davids Avenue, Carmarthen, SA31 3DN 5 September 2025 £410,000
22, St Davids Avenue, Carmarthen, SA31 3DN 2 July 2025 £297,000
32, St Davids Avenue, Carmarthen, SA31 3DN 20 August 2024 £180,000

Schools

Within 3.1 miles of this postcode

View all nearby schools
Open schools
11
Primary
0
Secondary
0
  1. St Mary's R.C. Primary School

    Welsh establishment

    215 m
  2. Model C.I.W. School

    Welsh establishment

    379 m
  3. Myrddin C.P. School

    Welsh establishment

    398 m

Recorded crime

Within 1 mile of this postcode

View all nearby crime records
Published events
2,182
Months covered
12
Latest month
June 2026

Most recorded categories in this period

  • Violence and sexual offences 948
  • Shoplifting 286
  • Anti social behaviour 194
  • Public order 183
  • Criminal damage and arson 164

Census 2021

Population and age profile

Postcode residents
62

30 female, 32 male

Postcode households
22
Residents per household
2.8
SA31 3 residents
7,557

Age bands in SA31 3

Wider postcode sector
Age 0 to 14
18.5%

1,401 residents

Age 15 to 24
13.4%

1,015 residents

Age 25 to 44
26.5%

2,010 residents

Age 45 to 64
23.4%

1,777 residents

Age 65 and over
18.2%

1,382 residents

This postcode contained 0.8% of the sector's usual residents on Census Day. The age profile describes the wider SA31 3 sector, not people in this individual postcode.

Small counts are adjusted for privacy, so totals can differ slightly between Census tables.

Census Day: 21 March 2021. Sources: ONS/Nomis P001-P004 and ONS CT21_0228. Age table version 2024-04-08.

Fixed broadband coverage

Ofcom's predicted availability across all residential and commercial premises in this postcode in January 2026.

Superfast, 30 Mbit/s+
100%
Ultrafast, 100 Mbit/s+
100%
Ultrafast, 300 Mbit/s+
100%
Gigabit-capable
100%
Unable to receive decent fixed or FWA broadband
0%
Next Generation Access
100%
Decent broadband available from fixed wireless
0%

Predicted coverage, not measured speeds. Check availability for your address with a provider. Postcode-level full-fibre figures are not published in this release.

Source: Ofcom Connected Nations Spring 2026, version 2026-01-v2. Contains Ofcom data licensed under the Open Government Licence v3.0.

GP practices

3

within 5 km

  • FURNACE HOUSE SURGERY

    ST. ANDREWS ROAD, CARMARTHEN, SA31 1EX

    ODS code W92016

    876 m

  • ST PETER'S SURGERY

    ST. PETERS SURGERY, ST. PETERS STREET, CARMARTHEN, SA31 1AH

    ODS code W92050

    969 m

  • MEDDYGFA PARC

    MEDDYGFA PARC, BUILDING 8, PARC DEWI SANT, JOB'S WELL ROAD, CARMARTHEN, SA31 3HB

    ODS code W92616

    1.1 km

Main GP practices only; branch surgeries are excluded. Distances are straight-line. Contact the practice to check registration, services, opening hours and appointments.

Source acquired on 2026-09-05. Contains information from NHS England, licenced under the current version of the Open Government Licence.

Nearby transport

  • Glannant House

    BCT · Johnstown

    0.1 miles
  • Glannant House

    BCT · Johnstown

    0.1 miles
  • Y Felin

    BCT · Carmarthen

    0.1 miles
  • Y Felin

    BCT · Carmarthen

    0.1 miles
  • Green Hall House

    BCT · Carmarthen

    0.1 miles

Evidence in context

Property market

The five-year median is £285,000 from 7 recorded sales in SA31 3DN. This is a recorded-sale statistic, not a current valuation.

The latest UK House Price Index average for Carmarthenshire is £197,547 in June 2026, up 6.1% year on year.

Schools

11 open schools are in scope, including 0 primary and 0 secondary schools. St Mary's R.C. Primary School is the nearest published school at 215 m.

Counts describe active establishment records. They do not assess admissions, catchments or quality.

Recorded crime

2,182 published events cover 12 months, averaging 181.833 events per published month. The largest recorded category is Violence and sexual offences with 948 events.

The source publishes anonymised street-level events. These figures are not a measure of safety for an individual address.